package com.alibaba.travel.member.Interceptor;

import com.alibaba.travel.member.Utils.UserHolder;
import com.alibaba.travel.member.entity.UserEntity;
import org.springframework.util.ObjectUtils;
import org.springframework.web.servlet.HandlerInterceptor;
import org.springframework.web.servlet.ModelAndView;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

public class LoginInterceptor implements HandlerInterceptor {

        @Override
        public boolean preHandle(HttpServletRequest request, HttpServletResponse response, Object handler) throws Exception {
        //对所有请求做判断拦截处理
        UserEntity user = UserHolder.getUser();
        //判断是否有user；
        if(ObjectUtils.isEmpty(user)){
            response.setStatus(400);
            return false;
        }

        return true;

    }

    @Override
    public void postHandle(HttpServletRequest request, HttpServletResponse response, Object handler, ModelAndView modelAndView) throws Exception {
        HandlerInterceptor.super.postHandle(request, response, handler, modelAndView);
    }

    @Override
    public void afterCompletion(HttpServletRequest request, HttpServletResponse response, Object handler, Exception ex) throws Exception {
        HandlerInterceptor.super.afterCompletion(request, response, handler, ex);
    }
}
